Linux Performance Tuning – Hands On !!

Linux system administrator, responsible for tuning and maintaining settings to support specific machine workloads.

Course Content

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Performance Monitoring Tools

• Monitoring Processes using ps command
• Monitoring Processes using top command
• Monitoring memory usage
• Monitoring File System Usage
• GNOME System Monitor
• Practice Lab Session
• Overview Sysstat Package Utilities
• Lab – Iostat command
• Lab – mpstat command
• Lab – pidstat command
• Overview SAR
• Advantages of SAR
• Lab – SAR
• Scheduling tasks with Systemd timer
• Monitoring Systems using Cockpit
• Monitoring Systems using performance co-pilot

Viewing Hardware Resources

• Viewing kernel messages using dmesg command
• Retrieving CPU Information
• Retrieving DMI Information – dmidecode
• Retrieving peripheral Information
• hwloc & lshw command

Configuring Kernel Tunables

• Proc File System
• Kernel Tunables
• Modifying Kernel Tunables
• Modify Kernel Tunables Using Sysctl Command
• Modify Kernel Tunables Persistently
• Sysfs File System
• About Kernel Modules
• Practice Lab Session
• Overview about tuning profiles
• Managing profiles from the command line
• Lab Session – Tuning profile

Managing Resource Limits

• Limiting System Resources with ulimit
• Configuring Persistent ulimit Rules
• Practice Lab Session
• Setting Limits for Services
• Lab – Configure the service with a cgroup

lsof – List open files

• lsof overview
• Lab Session
• Last Lecture

Lab on tcpdump- Network Packet Analyzer   

• For example: number of packets received (transmitted) through the network card, statistics of packet failure etc